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प्रश्न
Mention the importance of the position of the testes in humans.
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उत्तर
The testes are positioned in such a way hanging out from the body in scrotal sac that provides optimal temperature 2°C to 3°C lower than internal body temperature for effective sperm production.
संबंधित प्रश्न
Explain the process of birth in human beings.
Name any three parts of the female reproductive system in human beings. Write one function of each.
What do the ovaries in a woman produce?
X and Y are two human beings. The organ A in the reproductive system of X releases a mature gamete B once a month which goes into a tube-like structure C through a funnel-like opening. The organ D in the reproductive system of Y makes and releases gametes E which pass through a duct F and are introduced by an organ of Y, into the body of X. B and E fuse together in C to form a new cell G. The cell G divides repeatedly to form a ball of cells H which gets embedded in the lining of organ I of reproductive system of X where it grows and develops into a baby.
(a) Name (i) organ A, and (ii) gamete B.
(b) Write two names of tube-like structure C.
(c) Name (i) organ D, and (ii) gamete E.
(d) Write two names of duct F.
(e) Name (i) cell G (ii) ball of cells H, and (iii) organ I.
(f) Out of X and Y, which one is (i) male, and (ii) female?
Write two examples of sexually transmitted diseases caused by bacteria.
Complete the following statement by choosing the correct alternative:
Sterilization in female is due to cutting off of ______.
Define the following:
Parthenogenesis
Explain the term Parturition or birth.
Choose the Odd One Out:
Choose the Odd One Out:
